From 8738ad1549b967be04dec6198d90a3fccb9caee0 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 17:56:39 +0100 Subject: [PATCH 01/11] Editing the getAngleType Code --- .../implement/1-get-angle-type.js | 41 +++++++++++++++++-- 1 file changed, 38 insertions(+), 3 deletions(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js index ca1dfe7f2..566d80391 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js @@ -11,8 +11,21 @@ function getAngleType(angle) { if (angle === 90) { return "Right angle"; } - // Run the tests, work out what Case 2 is testing, and implement the required code here. - // Then keep going for the other cases, one at a time. + // Run the tests, work out what Case 2 is testing, and implement the required code here. + // Then keep going for the other cases, one at a time. + if (angle < 90 && angle > 0) { + return "Acute angle"; + } + if (angle > 90 && angle < 180) { + return "Obtuse angle"; + } + if (angle === 180) { + return "Straight angle"; + } + if (angle > 180 && angle < 360) { + return "Reflex angle"; + } + return "Invalid angle"; } // The line below allows us to load the getAngleType function into tests in other files. @@ -50,14 +63,36 @@ assertEquals(acute, "Acute angle"); // When the angle is greater than 90 degrees and less than 180 degrees, // Then the function should return "Obtuse angle" const obtuse = getAngleType(120); +assertEquals(obtuse, "Obtuse angle"); // ====> write your test here, and then add a line to pass the test in the function above // Case 4: Identify Straight Angles: // When the angle is exactly 180 degrees, // Then the function should return "Straight angle" +const straight = getAngleType(180); +assertEquals(straight, "Straight angle"); // ====> write your test here, and then add a line to pass the test in the function above // Case 5: Identify Reflex Angles: // When the angle is greater than 180 degrees and less than 360 degrees, // Then the function should return "Reflex angle" -// ====> write your test here, and then add a line to pass the test in the function above \ No newline at end of file +const reflex = getAngleType(250); +assertEquals(reflex, "Reflex angle"); +// ====> write your test here, and then add a line to pass the test in the function above + +let angle = 90; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 45; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 120; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 250; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 180; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 360; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = -10; +console.log(angle + " degrees is a " + getAngleType(angle)); +angle = 0; +console.log(angle + " degrees is a " + getAngleType(angle)); From ed40750a3615714e35d86467dcf5c092e5845943 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 18:13:14 +0100 Subject: [PATCH 02/11] Editing isProoerFraction Code --- .../implement/2-is-proper-fraction.js | 113 +++++++++++++++++- 1 file changed, 111 insertions(+), 2 deletions(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js index a4739af77..90d3a90e4 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js @@ -8,9 +8,10 @@ // write one test at a time, and make it pass, build your solution up methodically function isProperFraction(numerator, denominator) { - if (numerator < denominator) { - return true; + if (denominator === 0) { + return false; } + return Math.abs(numerator) < Math.abs(denominator); } // The line below allows us to load the isProperFraction function into tests in other files. @@ -46,6 +47,7 @@ assertEquals(improperFraction, false); // target output: true // Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true. const negativeFraction = isProperFraction(-4, 7); +assertEquals(negativeFraction, true); // ====> complete with your assertion // Equal Numerator and Denominator check: @@ -53,7 +55,114 @@ const negativeFraction = isProperFraction(-4, 7); // target output: false // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false. const equalFraction = isProperFraction(3, 3); +assertEquals(equalFraction, false); // ====> complete with your assertion // Stretch: // What other scenarios could you test for? + +// Zero Numerator check: +const zeroNumerator = isProperFraction(0, 5); +assertEquals(zeroNumerator, true); + +// Negative Denominator check: +const negativeDenominator = isProperFraction(2, -3); +assertEquals(negativeDenominator, true); + +// Both Negative check: +const bothNegative = isProperFraction(-2, -5); +assertEquals(bothNegative, true); + +// Large Numbers check: +const largeNumbers = isProperFraction(1000000, 1000001); +assertEquals(largeNumbers, true); + +let numerator = 2; +let denominator = 2; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = -3; +denominator = 4; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = 5; +denominator = -6; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = -7; +denominator = -8; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = 0; +denominator = 1; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = 10; +denominator = 20; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = 15; +denominator = 10; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = -25; +denominator = 30; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); + +numerator = 478356; +denominator = 478357; +console.log( + numerator + + "/" + + denominator + + " proper fraction output is " + + isProperFraction(numerator, denominator) +); From e6d384cca8ce1491bb600ca12c74e02bc8635353 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 18:15:15 +0100 Subject: [PATCH 03/11] Editing getCardValue Code --- .../implement/3-get-card-value.js | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js index 266525d1b..ee3a54e41 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js @@ -8,9 +8,17 @@ // write one test at a time, and make it pass, build your solution up methodically // just make one change at a time -- don't rush -- programmers are deep and careful thinkers function getCardValue(card) { + const rank = card.slice(0, -1); + if (["2", "3", "4", "5", "6", "7", "8", "9"].includes(rank)) { + return parseInt(rank, 10); + } if (rank === "A") { return 11; } + if (["K", "Q", "J", "10"].includes(rank)) { + return 10; + } + return "Invalid card rank"; } // The line below allows us to load the getCardValue function into tests in other files. @@ -39,6 +47,7 @@ assertEquals(aceofSpades, 11); // When the function is called with such a card, // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5). const fiveofHearts = getCardValue("5♥"); +assertEquals(fiveofHearts, 5); // ====> write your test here, and then add a line to pass the test in the function above // Handle Face Cards (J, Q, K): @@ -46,12 +55,33 @@ const fiveofHearts = getCardValue("5♥"); // When the function is called with such a card, // Then it should return the value 10, as these cards are worth 10 points each in blackjack. +const kingofDiamonds = getCardValue("K♦"); +assertEquals(kingofDiamonds, 10); +const queenofClubs = getCardValue("Q♣"); +assertEquals(queenofClubs, 10); +const jackofHearts = getCardValue("J♥"); +assertEquals(jackofHearts, 10); +const tenofSpades = getCardValue("10♠"); +assertEquals(tenofSpades, 10); // Handle Ace (A): // Given a card with a rank of "A", // When the function is called with an Ace, // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack. +const aceofClubs = getCardValue("A♣"); +assertEquals(aceofClubs, 11); + // Handle Invalid Cards: // Given a card with an invalid rank (neither a number nor a recognized face card), // When the function is called with such a card, // Then it should throw an error indicating "Invalid card rank." +const invalidCard = getCardValue("1♠"); +assertEquals(invalidCard, "Invalid card rank"); +const anotherInvalidCard = getCardValue("B♦"); +assertEquals(anotherInvalidCard, "Invalid card rank"); + +console.log(getCardValue("3♠")); +console.log(getCardValue("10♣")); +console.log(getCardValue("J♦")); +console.log(getCardValue("A♥")); +console.log(getCardValue("11♠")); From a2b2e06bdcaf156c70363df5cb05502d19d5aaf2 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 18:18:19 +0100 Subject: [PATCH 04/11] Passed the test for getAngleType code --- .../rewrite-tests-with-jest/1-get-angle-type.test.js | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js index 4a92a3e82..eb6fab69b 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/1-get-angle-type.test.js @@ -12,15 +12,27 @@ test("should identify right angle (90°)", () => { // Case 2: Identify Acute Angles: // When the angle is less than 90 degrees, // Then the function should return "Acute angle" +test("should identify acute angle (<90°)", () => { + expect(getAngleType(45)).toEqual("Acute angle"); +}); // Case 3: Identify Obtuse Angles: // When the angle is greater than 90 degrees and less than 180 degrees, // Then the function should return "Obtuse angle" +test("should identify obtuse angle (90° { + expect(getAngleType(120)).toEqual("Obtuse angle"); +}); // Case 4: Identify Straight Angles: // When the angle is exactly 180 degrees, // Then the function should return "Straight angle" +test("should identify straight angle (180°)", () => { + expect(getAngleType(180)).toEqual("Straight angle"); +}); // Case 5: Identify Reflex Angles: // When the angle is greater than 180 degrees and less than 360 degrees, // Then the function should return "Reflex angle" +test("should identify reflex angle (180° { + expect(getAngleType(270)).toEqual("Reflex angle"); +}); From 11efcb1215dc7c3ba585ed4934d3edf0e35c72ca Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 18:26:22 +0100 Subject: [PATCH 05/11] Passed getCardvalue test --- .../2-is-proper-fraction.test.js | 9 ++++++ .../3-get-card-value.test.js | 28 +++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js index caf08d15b..7b8d0c835 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js @@ -7,7 +7,16 @@ test("should return true for a proper fraction", () => { }); // Case 2: Identify Improper Fractions: +test("should return false for an improper fraction", () => { + expect(isProperFraction(5, 4)).toEqual(false); +}); // Case 3: Identify Negative Fractions: +test("should return true for a negative fraction", () => { + expect(isProperFraction(-1, 2)).toEqual(true); +}); // Case 4: Identify Equal Numerator and Denominator: +test("should return false for equal numerator and denominator", () => { + expect(isProperFraction(3, 3)).toEqual(false); +}); diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js index 04418ff72..3218c321c 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js @@ -8,6 +8,34 @@ test("should return 11 for Ace of Spades", () => { }); // Case 2: Handle Number Cards (2-10): +test("should return 5 for Five of Hearts", () => { + const fiveofHearts = getCardValue("5♥"); + expect(fiveofHearts).toEqual(5); +}); // Case 3: Handle Face Cards (J, Q, K): +test("should return 10 for Jack of Diamonds", () => { + const jackofDiamonds = getCardValue("J♦"); + expect(jackofDiamonds).toEqual(10); +}); +test("should return 10 for Queen of Clubs", () => { + const queenofClubs = getCardValue("Q♣"); + expect(queenofClubs).toEqual(10); +}); +test("should return 10 for King of Hearts", () => { + const kingofHearts = getCardValue("K♥"); + expect(kingofHearts).toEqual(10); +}); // Case 4: Handle Ace (A): +test("should return 11 for Ace of Spades", () => { + const aceofSpades = getCardValue("A♠"); + expect(aceofSpades).toEqual(11); +}); // Case 5: Handle Invalid Cards: +test("should return Invalid card rank for an invalid card rank", () => { + const invalidCard = getCardValue("1♣"); + expect(invalidCard).toEqual("Invalid card rank"); +}); +test("should return Invalid card rank for another invalid card rank", () => { + const anotherInvalidCard = getCardValue("B♦"); + expect(anotherInvalidCard).toEqual("Invalid card rank"); +}); From d440aaf8d137173a71e7402ba37a8ccd07b49553 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Sun, 12 Oct 2025 18:35:14 +0100 Subject: [PATCH 06/11] Passed isProperFraction test --- .../rewrite-tests-with-jest/2-is-proper-fraction.test.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js index 7b8d0c835..88e89e691 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js @@ -1,6 +1,6 @@ // This statement loads the isProperFraction function you wrote in the implement directory. // We will use the same function, but write tests for it using Jest in this file. -const isProperFraction = require("../implement/2-is-proper-fraction"); +const isProperFraction = require("../implement/2-is-proper-fraction"); // The path test("should return true for a proper fraction", () => { expect(isProperFraction(2, 3)).toEqual(true); From 07685f8f52b20480d02dec96974e705164f76e6a Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Thu, 23 Oct 2025 12:55:45 +0100 Subject: [PATCH 07/11] Deleted angle>90 --- .../1-implement-and-rewrite-tests/implement/1-get-angle-type.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js index 566d80391..114817090 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/1-get-angle-type.js @@ -16,7 +16,7 @@ function getAngleType(angle) { if (angle < 90 && angle > 0) { return "Acute angle"; } - if (angle > 90 && angle < 180) { + if (angle < 180) { return "Obtuse angle"; } if (angle === 180) { From 283fe0620f11cdb04bcf55a85adc30665ec5332d Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Thu, 23 Oct 2025 13:41:21 +0100 Subject: [PATCH 08/11] Editing the code --- .../1-implement-and-rewrite-tests/implement/3-get-card-value.js | 1 + 1 file changed, 1 insertion(+) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js index ee3a54e41..900fe656b 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js @@ -85,3 +85,4 @@ console.log(getCardValue("10♣")); console.log(getCardValue("J♦")); console.log(getCardValue("A♥")); console.log(getCardValue("11♠")); +console.log(getCardValue("J")); From 7139e24c525c05da43a1bc832f90d40f3e7cc6c2 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Thu, 23 Oct 2025 13:46:03 +0100 Subject: [PATCH 09/11] Generalise test case3 --- .../3-get-card-value.test.js | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js index 3218c321c..a68873346 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js @@ -13,17 +13,12 @@ test("should return 5 for Five of Hearts", () => { expect(fiveofHearts).toEqual(5); }); // Case 3: Handle Face Cards (J, Q, K): -test("should return 10 for Jack of Diamonds", () => { - const jackofDiamonds = getCardValue("J♦"); - expect(jackofDiamonds).toEqual(10); -}); -test("should return 10 for Queen of Clubs", () => { - const queenofClubs = getCardValue("Q♣"); - expect(queenofClubs).toEqual(10); -}); -test("should return 10 for King of Hearts", () => { - const kingofHearts = getCardValue("K♥"); - expect(kingofHearts).toEqual(10); +test("should return 10 for all face cards (J, Q, K)", () => { + const faceCards = ["J♦", "Q♣", "K♥"]; + faceCards.forEach((card) => { + const value = getCardValue(card); + expect(value).toEqual(10); + }); }); // Case 4: Handle Ace (A): test("should return 11 for Ace of Spades", () => { From 29b1e296d7203fb9bc20cb66e94449fe5a59e397 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Thu, 23 Oct 2025 16:42:40 +0100 Subject: [PATCH 10/11] Editing --- .../implement/3-get-card-value.js | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js index 900fe656b..066696e46 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js +++ b/Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js @@ -55,13 +55,13 @@ assertEquals(fiveofHearts, 5); // When the function is called with such a card, // Then it should return the value 10, as these cards are worth 10 points each in blackjack. -const kingofDiamonds = getCardValue("K♦"); +const kingofDiamonds = getCardValue("K"); assertEquals(kingofDiamonds, 10); -const queenofClubs = getCardValue("Q♣"); +const queenofClubs = getCardValue("Q"); assertEquals(queenofClubs, 10); -const jackofHearts = getCardValue("J♥"); +const jackofHearts = getCardValue("J"); assertEquals(jackofHearts, 10); -const tenofSpades = getCardValue("10♠"); +const tenofSpades = getCardValue("10"); assertEquals(tenofSpades, 10); // Handle Ace (A): // Given a card with a rank of "A", From 4c6b2b21c444e3bf09606480fbda0a4a3999c408 Mon Sep 17 00:00:00 2001 From: Fares Bakhet Date: Thu, 23 Oct 2025 16:45:41 +0100 Subject: [PATCH 11/11] Re-write the tests --- .../3-get-card-value.test.js | 32 ++++++++----------- 1 file changed, 14 insertions(+), 18 deletions(-) diff --git a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js index a68873346..d4a870fe0 100644 --- a/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js +++ b/Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/3-get-card-value.test.js @@ -8,29 +8,25 @@ test("should return 11 for Ace of Spades", () => { }); // Case 2: Handle Number Cards (2-10): -test("should return 5 for Five of Hearts", () => { - const fiveofHearts = getCardValue("5♥"); - expect(fiveofHearts).toEqual(5); +test("should return correct value for numbered cards (2-10)", () => { + expect(getCardValue("5♥")).toBe(5); + expect(getCardValue("10♦")).toBe(10); }); // Case 3: Handle Face Cards (J, Q, K): -test("should return 10 for all face cards (J, Q, K)", () => { - const faceCards = ["J♦", "Q♣", "K♥"]; - faceCards.forEach((card) => { - const value = getCardValue(card); - expect(value).toEqual(10); +test("should return 'Invalid card rank' for invalid cards", () => { + ["1♣", "B♦", "Z♠"].forEach((card) => { + expect(getCardValue(card)).toBe("Invalid card rank"); }); }); // Case 4: Handle Ace (A): -test("should return 11 for Ace of Spades", () => { - const aceofSpades = getCardValue("A♠"); - expect(aceofSpades).toEqual(11); +test("should return 11 for Ace (A)", () => { + ["A♠", "A♥"].forEach((card) => { + expect(getCardValue(card)).toBe(11); + }); }); // Case 5: Handle Invalid Cards: -test("should return Invalid card rank for an invalid card rank", () => { - const invalidCard = getCardValue("1♣"); - expect(invalidCard).toEqual("Invalid card rank"); -}); -test("should return Invalid card rank for another invalid card rank", () => { - const anotherInvalidCard = getCardValue("B♦"); - expect(anotherInvalidCard).toEqual("Invalid card rank"); +test("should return 'Invalid card rank' for invalid cards", () => { + ["1♣", "B♦", "Z♠"].forEach((card) => { + expect(getCardValue(card)).toBe("Invalid card rank"); + }); });